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Infectious bursal disease virus strain:very virulent | isolate:BAU-MH-IBDV-BR-3

ABSTRACT: Infectious bursal disease virus strain:very virulent | isolate:BAU-MH-IBDV-BR-3 Raw sequence reads

PROVIDER: PRJNA998029 | ENA |

REPOSITORIES: ENA

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	SRR25405008.fastq.gz	Fastqsanger.gz

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Transcriptional Profiles in Bursal B-Lymphoid DT40 Cells Infected with Very Virulent Infectious Bursal Disease Virus

Project description:Infectious bursal disease virus (IBDV) causes a highly contagious, immunosuppressive disease in chickens. The virus mainly infects immature B lymphocytes in the bursa of Fabricius (BF). Chicken B cell line DT40, an avian leukosis virus-induced B cell line, supports very virulent IBDV (vvIBDV) infection in vitro and thereby serves as a good model for investigating the infection and pathogenesis of this virus. However, a transcriptome-wide understanding of the interaction between vvIBDV and B cells has not yet been achieved. This study aimed to employ time-course DNA microarrays to investigate gene expression patterns in DT40 cells after infection with vvIBDV strain LX.

2016-10-01 | GSE71888 | GEO

Transcription profiling by array of differential gene expression in chicken primary B cells infected ex vivo with attenuated and very virulent strains of infectious bursal disease virus (IBDV)

Project description:Infectious bursal disease virus (IBDV) belongs to the family Birnaviridae and is economically important to the poultry industry worldwide. IBDV infects B cells in the bursa of Fabricius (BF), which can cause severe immunosuppression and mortality in young chickens. Earlier studies have shown that strains of IBDV lose their virulence potential after serial passage in non-B lymphoid cells, for reasons that are poorly understood. This study aimed to investigate the gene expression profiles of one cell-culture adapted attenuated IBDV strain (D78) and one very virulent IBDV strain (UK661) in chicken primary B cells cultured ex vivo from the bursa of Fabricius. The viruses were studied in B cells over 48h and their gene expression was initially evaluated with qPCR. The mRNA was isolated from the cells at 18 hours post-infection and screened with Affymetrix microarrays in triplicate. The study included mock controls which were conducted in triplicate.

2017-11-01 | E-MTAB-5947 | biostudies-arrayexpress

microRNA Expression Study of chicken CD3-28-4+ intraepithelial lymphocyte natural killer cells infected with very virulent Infectious Bursal Disease Virus

Project description:Infectious bursal disease is an acute immunosuppressive viral disease which significantly affect the economic in poultry industrial. Infectious bursal disease virus (IBDV) infection was known to destroy B lymphocytes, activate macrophage and T lymphocytes, but there are limited studies on the impact of IBDV infection on chicken intraepithelial Natural killer (IEL-NK) cells. The main objective of this study is to determine the innate immune response of chicken IEL-NK cells towards very virulent IBDV (vvIBDV) infection. Specific pathogen free (SPF) chickens were infected with vvIBDV for 0, 1 and 3 dpi. The IEL-NK cells were isolated and enriched from total IEL cells using the 28.4+ antibodies. The microRNA sequencing was conducted in MiSeq system and approximately 1.6 to 3.6 million single reads generated per sample. The differential expression analysis was performed on the miRNA-Seq data. there are 35 and 16 sRNAs were differentially expressed at 1 and 3 dpi, respectively. The SNORD101, gga-miR-222a and gga-miR-221-3p were up-regulated on Day 1 and 3 whereas gga-miR-30a-50, gga-miR-142-5p, gga-miR-32-5p and gga-miR-146b-5p were down-regulated on both days. gga-miR-217-5p and gga-miR-222b-5p with the highest fold change were involved in the regulation of tumor growth and apoptosis by targeting the MAPK signaling pathway. The vvIBDV replication was suppressed by overexpression of gga-miR-21 at 3 dpi. Some of the miRNAs were up-regulated with unknown reasons but the same findings were showed in other publications such as gga-miR-3538 and gga-miR-2954 which were up-regulated after being infected by other viruses, but the roles of these miRNA are not clear.

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Gene Expression Study of Innate Immune Response of Chicken Intraepithelial lymphocyte natural killer cells to very virulent Infectious Bursal Disease Virus (vvIBDV)

Project description:BACKGROUND:Infectious bursal disease is an acute immunosuppressive viral disease which significantly affect the economic in poultry industrial. Infectious bursal disease virus (IBDV) infection was known to destroy B lymphocytes, activate macrophage and T lymphocytes, but there are limited studies on the impact of IBDV infection on chicken intraepithelial Natural killer (IEL-NK) cells. RESULTS: The main objective of this study is to determine the innate immune response of chicken IEL-NK cells towards very virulent IBDV (vvIBDV) infection. Specific pathogen free (SPF) chickens were infected with vvIBDV for 0, 1 and 3 dpi. The IEL-NK cells were isolated and enriched from total IEL cells using the 28.4+ antibodies. The transcriptome sequencing was conducted in HiSeq2500 system and approximately 62 to 71 million paired-end reads generated per sample. The differential expression analysis was performed on the RNA-Seq data. On dpi 1, there are 838 genes up-regulated and 277 genes down-regulated. On dpi 3, there are 516 genes up-regulated whereas 750 genes down-regulated. According to pathway analysis, the differential expressed (DE) genes related to innate immune response are involved in several pathways such as cytokine-cytokine receptor, toll-like receptor and apoptosis pathway. CONCLUSION: The IEL-NK cells were de-activated after infected by vvIBDV through the down-regulation of several genes activate the NK cells such as IL18, TLR4 and TLR7/8. The IEL-NK cells were de-activated through up-regulation of expression for TGFB3 which inhibit the activation and function of NK cells by repressing the mTOR pathway. Meanwhile, the infection of vvIBDV induced apoptosis in IEL NK cells by increasing the expression level of some genes promote apoptosis such as CASP2, CASP8 and TLR3.

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Large scale gene expression of Vero cell correlated to infection of infectious bursal disease virus

Project description:Infectious bursal disease virus (IBDV) is the pathogenic agent of infectious bursal disease (IBD). Scine it was observed in 1957, IBD spread worldwidely in the chicken flocks, is a important immunosuppressive disease and an threat to poultry industry. Although many studies have be done about IBDV, interaction of IBDV infection and IBDV-encoding genes to host cell gene expression are little known. In this study, the LongSAGE library of Vero-cell, IBDV- infected vero cell, Vero-cell transfected with IBDV-VP5 gene, Vero-cell transfected with IBDV A frament and Vero-cell transfected with IBDV VP243 frament were obtained. We got 96,213 gene tags (17 nucleotides), which represented 24,475 transcripts. Keywords: Transcripts of different state vero-cell

2007-11-05 | GSE6243 | GEO

The severity of infectious bursal disease in White Leghorn inbred chicken lines is associated with greater bursal inflammation in vivo and more rapid induction of pro-inflammatory responses following ex vivo stimulation of primary bursal cells.

Project description:Transcriptomics analysis reveals that severity of infectious bursal disease in White Leghorn inbred chicken lines is associated with greater bursal inflammation in vivo and more rapid induction of pro-inflammatory responses following ex vivo stimulation of primary bursal cells. In order to better understand differences in the outcome of infectious bursal disease virus (IBDV) infection, we inoculated very virulent (vv) IBDV into White Leghorn chickens from inbred line W that previously had over 24% mortality, and three inbred lines (15I, C.B4 and O) that previously had 0% mortality. Within each experimental group, some individuals experienced more severe disease than others but line 15I birds experienced milder disease based on average clinical scores, percentage of birds with gross pathology, average bursal lesion scores and average peak bursal virus titre. RNA-Seq analysis revealed that more severe disease was associated with a significant up-regulation of pathways involved in inflammation, cytoskeletal regulation by Rho GTPase, nicotinic acetylcholine receptor signaling, and Wnt signaling in the bursa. Primary bursal cells cultured from line W birds and stimulated ex vivo with LPS had a more rapid up-regulation of pro-inflammatory gene expression than cells from line 15I birds, and line W birds had a significantly greater percentage of KUL01+ macrophage cells in the BF than line 15I birds. We hypothesize that a more rapid induction of pro-inflammatory cytokine responses in line W birds causes excessive inflammation and clinical disease following IBDV infection compared to line 15I, and we suggest that pro-inflammatory pathways could be targeted to engineer more disease resistant birds in the future

2021-06-02 | GSE166026 | GEO

Large scale gene expression of Vero cell correlated to infection of infectious bursal disease virus

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